XZ Utils 5.2.2 is available at <http://tukaani.org/xz/>. Here is an extract from the NEWS file:
* Fixed bugs in QNX-specific code. * Omitted the use of pipe2() even if it is available to avoid portability issues with some old Linux and glibc combinations. * Updated German translation. * Added project files to build static and shared liblzma (not the whole XZ Utils) with Visual Studio 2013 update 2 or later. * Documented that threaded decompression hasn't been implemented yet. A 5.2.0 NEWS entry describing multi-threading support had incorrectly said "decompression" when it should have said "compression". The 5.0.x branch is no longer maintained. As of 2015-09-29 there are no known major bugs and it is fine to keep using 5.0.8 for now if you don't want to upgrade to 5.2.x. The API and ABI in 5.2.x are backward compatible with 5.0.x so it should be straightforward to upgrade from 5.0.x to 5.2.x. -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode